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Exploring epigenomic perturbation by an episomal RNA virus vector

Research Project

Project/Area Number 21K19909
Research Category

Grant-in-Aid for Challenging Research (Exploratory)

Allocation TypeMulti-year Fund
Review Section Medium-sized Section 90:Biomedical engineering and related fields
Research InstitutionKyoto University

Principal Investigator

TOMONAGA Keizo  京都大学, 医生物学研究所, 教授 (10301920)

Project Period (FY) 2021-07-09 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥6,500,000 (Direct Cost: ¥5,000,000、Indirect Cost: ¥1,500,000)
Fiscal Year 2022: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Fiscal Year 2021: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Keywordsウイルスベクター / 幹細胞 / 遺伝子治療 / エピゲノム / ボルナウイルス
Outline of Research at the Start

ウイルスベクターによる遺伝子導入は細胞のエピゲノムに恒常的変容(エピゲノム摂動)をもたらす。この摂動は遺伝子治療の効果に大きく影響するが、これまでウイルスベクターによるエピゲノム摂動を詳細に検証した研究はない。本研究は、独自に開発した新規RNAウイルスベクターREVecによる遺伝子導入がもたらすエピゲノム摂動を明らかにし、遺伝子細胞治療ベクターとしての安全性につなげると同時に、ウイルスエピソーマルRNAによるエピジェネティクス制御というウイルスの新しいゲノム制御機構の探究を行う。

Outline of Final Research Achievements

The purpose of this study was to elucidate epigenomic perturbation by REVec, an episomal RNA-based viral vector developed from the Borna disease virus. To explore the regulation of epigenetics by virus-derived episomal RNA, the following two points were performed: 1) elucidate the epigenomic perturbation of stem cells by REVec transduction; 2) examine the effect of REVec epigenomic perturbation on stem cell differentiation; in 1), REVec-transduced mesenchymal stem cells were generated and in 2), we analyzed gene expression changes in REVec-transfected mesenchymal stem cells by microarray and tested for expression of undifferentiated markers and oncogenesis.

Academic Significance and Societal Importance of the Research Achievements

外来遺伝子を発現するウイルスベクターを生体に導入するためには、その毒性を可能な限り排除しなくてはならない。しかしながら、これまでウイルスベクターによる細胞のエピジェネティックな変化(エピゲノム摂動)を「毒性」として捉え詳細に検証した研究はない。本研究では、遺伝子再生治療や再生医療に応用されている幹細胞をターゲットとして、ベクター導入におけるエピゲノム変化の探索を実施した。本研究の成果により、RNAウイルスベクター導入による幹細胞の分化と生化学性状が明らかとなり、エピゲノム変化との関連性が示唆された。今後の継続した解析によりウイルスベクター導入による影響の検証が可能となった。

Report

(3 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • Research Products

    (13 results)

All 2022 2021 Other

All Journal Article (4 results) (of which Peer Reviewed: 4 results,  Open Access: 3 results) Presentation (7 results) (of which Int'l Joint Research: 2 results) Remarks (2 results)

  • [Journal Article] Exogenous expression of both matrix protein and glycoprotein facilitates infectious viral particle production of Borna disease virus 12022

    • Author(s)
      Kanda Takehiro、Sakai Madoka、Makino Akiko、Tomonaga Keizo
    • Journal Title

      Journal of General Virology

      Volume: 103 Issue: 7 Pages: 001767-001767

    • DOI

      10.1099/jgv.0.001767

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Reverse Genetics and Artificial Replication Systems of Borna Disease Virus 12022

    • Author(s)
      Kanda Takehiro、Tomonaga Keizo
    • Journal Title

      Viruses

      Volume: 14 Issue: 10 Pages: 2236-2236

    • DOI

      10.3390/v14102236

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] BUD23?TRMT112 interacts with the L protein of Borna disease virus and mediates the chromosomal tethering of viral ribonucleoproteins2021

    • Author(s)
      Garcia Bea Clarise B.、Horie Masayuki、Kojima Shohei、Makino Akiko、Tomonaga Keizo
    • Journal Title

      Microbiology and Immunology

      Volume: 65 Issue: 11 Pages: 492-504

    • DOI

      10.1111/1348-0421.12934

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Stability of Borna disease virus‐based episomal vector under physical and chemical stimulation2021

    • Author(s)
      Yanai Mako、Sakai Madoka、Komorizono Ryo、Makino Akiko、Tomonaga Keizo
    • Journal Title

      Microbiology and Immunology

      Volume: 66 Issue: 1 Pages: 24-30

    • DOI

      10.1111/1348-0421.12946

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] Establishment of a reverse genetics system for Borna disease virus 22022

    • Author(s)
      Takehiro Kanda, Pauline Santos, Dirk Hoper, Martin Beer, Dennis Rubbenstroth, Keizo Tomonaga
    • Organizer
      第69回日本ウイルス学会学術集会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Involvement of TRIM28/33 in SARS-CoV-2 replication.2022

    • Author(s)
      Madoka Sakai, Kosuke Yusa, Keizo Tomonaga, Akiko Makino.
    • Organizer
      第69回日本ウイルス学会学術集会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Pathogenicity of variegated squirrel bornavirus.2022

    • Author(s)
      Akiko Makino, Kan Fujino, Keizo Tomonaga.
    • Organizer
      International Union of Microbiological Societies
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Development of an RNA virus-based episomal vector with artificial aptazyme for switching gene.2022

    • Author(s)
      Ryo Komorizono, Chiaki Tanaka, Shima Yoshizumi, Keizo Tomonaga.
    • Organizer
      第23回日本RNA学会年会
    • Related Report
      2022 Annual Research Report
  • [Presentation] A novel intranuclear RNA vector system targeting stem cells and the central nervous system.2021

    • Author(s)
      Keizo Tomonaga
    • Organizer
      The 16th International Symposium of the Institute Network for Biomedical Sciences.
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] Additional expression of matrix protein and glycoprotein facilitates infectious virus production of Borna disease virus 1.2021

    • Author(s)
      Kanda T, Sakai M, Makino A, Tomonaga K.
    • Organizer
      第68回日本ウイルス学会学術集会
    • Related Report
      2021 Research-status Report
  • [Presentation] BUD23-TRMT112 mediates the chromosomal tethering of Borna disease virus 1 and catalyzes the m7G methylation of the viral RNA.2021

    • Author(s)
      Garcia BCB, Horie M, Kojima S, Tomonaga K.
    • Organizer
      第68回日本ウイルス学会学術集会
    • Related Report
      2021 Research-status Report
  • [Remarks] 京都大学医生物学研究所朝長研究室

    • URL

      https://t.rnavirus.virus.kyoto-u.ac.jp/

    • Related Report
      2022 Annual Research Report 2021 Research-status Report
  • [Remarks] 京都大学医生物学研究所

    • URL

      https://www.infront.kyoto-u.ac.jp/

    • Related Report
      2021 Research-status Report

URL: 

Published: 2021-07-13   Modified: 2024-01-30  

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